Vulkan: Add multithreaded SPIR-V shader compiler support

Author: JKSunny

codemp/rd-vulkan/shaders/compile_threaded.bat

@@ -0,0 +1,26 @@
+@echo off
+
+set "VSCMD_START_DIR=%CD%"
+call "C:\Program Files\Microsoft Visual Studio\2022\Community\Common7\Tools\VsDevCmd.bat"
+
+set tools_dir=tools
+set bh=%tools_dir%\compile_threaded.exe
+set bh_cpp=%tools_dir%\compile_threaded.cpp
+
+if exist %bh% (
+    del /Q %bh%
+)
+
+if not exist %bh% (
+    cl.exe /EHsc /nologo /Fe%tools_dir%\ /Fo%tools_dir%\ %bh_cpp%
+)
+
+set glsl=glsl\\
+set cl=%VULKAN_SDK%\Bin\glslangValidator.exe
+::set cl=%tools_dir%\glslang\bin\glslangValidator.exe
+set outf=+spirv\shader_data.c
+set outfb=+spirv\shader_binding.c
+
+"%bh%" "%glsl%" "%cl%" "%outf%" "%outfb%"
+
+pause

codemp/rd-vulkan/shaders/spirv/shader_binding.c

@@ -111,4 +111,4 @@ void vk_bind_generated_shaders( void ){
     vk_set_shader_name( vk.shaders.frag.gen[0][2][0][1], "frag_cpu_tx2_fog" );
     vk.shaders.frag.gen[0][2][1][1] = SHADER_MODULE( frag_cpu_tx2_cl_fog );
     vk_set_shader_name( vk.shaders.frag.gen[0][2][1][1], "frag_cpu_tx2_cl_fog" );
-}
+}